JPH0446967Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a door link lever structure for a vehicle air conditioner, and in particular, the invention relates to a door link lever structure for a vehicle air conditioner, and in particular, a vehicle air conditioner that allows easy installation of a distribution door disposed within a cable. Regarding door link lever structure.

In general, a door link lever is well known as a means for driving the distribution door of an air conditioner that controls the distribution of outside air or conditioned air.
Taking the door link lever L of an air intake door D as an example, this door link lever structure is made of a short thin plate as shown in Fig. 1 (see Japanese Utility Model Publication No. 54-178346). has been done. One end of the door link lever L disposed on the outer wall of the casing 1 is connected to a shaft pin 4 of an air intake door D disposed within the casing 1 for opening and closing the outside air inlet 2 and the inside air inlet 3.
The pin 6, which is pivotally supported by the door link lever L and is provided protruding from the other end of the door link lever L, has an intake that is the actuating end of the operating cable 7, which is fixed to the outer wall of the casing 1 via a fastener 5. The end of the air intake door D is locked, and the air intake door D is opened and closed via a door link lever L that rotates about a shaft pin 4 as the operating cable 7 moves forward and backward.

However, when this conventional door link lever L is attached to the outer wall of the casing 1, one end of the door link lever L is pivoted to the shaft pin 4, and then the operating side end of the operating cable 7 is attached to the shaft pin 4. After locking the end of the intake door D side with the pin 6 of the door link lever L, move the door link lever L counterclockwise in FIG. 1 so that the air intake door D completely blocks the outside air inlet 2. The operating cable 7 must be firmly attached to the outer wall of the casing 1 with the fastener 5 while being rotated so as to press it firmly against the door link lever. Coupled with the fact that L is short, it is difficult and complicated to apply sufficient rotational force so that the air intake door D completely closes the outside air inlet 2. Furthermore, if the air intake door D cannot completely close off the outside air inlet 2, not only will exhaust gas etc. intrude, but also outside air will get mixed in during inside air circulation cooling, resulting in problems such as a decrease in cooling capacity. It also had the problem of being difficult to manage.

This invention was devised in light of the current situation, and its purpose is to facilitate the assembly work and quality control of vehicle air conditioning units by providing a door link lever structure that can extremely easily set the air distribution door disposed within the casing of the vehicle air conditioning unit to the desired position.

In order to achieve this purpose, in this invention, a ventilation door D disposed inside the casing 1 is provided.
The shaft pin 4 is disposed outside the casing 1 and has one end Lo pivotally attached to the shaft pin 4 which rotatably supports the casing door D. 1 Outer cable 7a
The inner wire 7 of the operation cable 7 is fixedly attached.
A main rod part La whose actuating side end of b is locked and moved by the operation cable 7, and a main rod part La that extends from the one end Lo of the main rod part La and distributes air inside the casing 1 when pressed manually. The casing 1 is arranged so that the door D can reliably close the air passage.
The arm portion Lb protruding outward constitutes a door link lever of a vehicle air conditioner.

Next, this invention will be explained in detail based on the embodiment shown in FIGS. 2 and 3.

FIG. 2 shows a door link lever L according to a first embodiment of this invention. The inner part of the operating cable 7 has one end Lo pivoted on the shaft pin 4 of the air intake door D that opens and closes the opening 3, and an outer cable 7a fixed to the other end Lc to control the opening and closing of the air intake door D. A main rod portion La to which the operating side end of the wire 7b, which is the terminal end on the air intake door D side, is locked, and a casing 1 that extends in a direction substantially perpendicular to the main rod portion La and can be manually pressed. The arm portion Lb protrudes outward and is formed into a substantially L-shape in plan view.

Door link lever L configured in this way
When attaching the operating side end of the inner wire 7b of the cable 7, which is the terminal end on the air intake door D side, to the outer wall of the casing 1, the main rod part
The position Lo of La is pivoted to the shaft pin 4, and then the operating side end of the inner wire 7b of the operation cable 7, which is the end on the air intake door D side, is provided to protrude from the other end Lc of the main rod part La. While rotating the door link lever L, press the arm part Lb strongly counterclockwise in FIG. 2 so that the air intake door D completely closes the outside air introduction port 2. , the operating cable 7 is fixed to the outer wall of the casing 1 via the fastener 5.

Therefore, the door link lever L according to this embodiment
In this case, the air intake door D can be completely closed to the outside air inlet 2 by simply pressing the arm part Lb downward.
Moreover, since the arm portion Lb of the door link lever L protrudes in a direction substantially perpendicular to the main rod portion La, the pressing operation described above can be easily performed even in a narrow space. In addition to being able to
Since the outside air introduction port 2 can be completely closed by the air intake door D, the performance of the air conditioner can be maintained and improved, and quality control becomes easy.

FIG. 3 shows a door link lever L according to a second embodiment of this invention. In the door link lever L according to this embodiment, unlike the first embodiment, the arm portion Lb is the main part. Other than the fact that it is formed to extend in the axial direction of the rod part La and is configured to improve the yield of material during molding, the other configurations and functions are exactly the same as in the first embodiment. The same reference numerals as in the first embodiment are used in the drawings, and detailed explanation thereof will be omitted here.

In each of the above embodiments, the case where this invention is applied to the air intake door D has been explained as an example, but it goes without saying that this invention can also be applied to other ventilation doors.

Since this invention includes the above-mentioned configuration, it is possible to easily set each door disposed in the casing of a vehicle air conditioner to a desired state, and the performance of the device can be maintained and improved, making quality control easy. In addition to this, there is an effect that the assembly work of the device is facilitated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the installed state of a conventional door link lever, FIG. 2 is a perspective view showing the installed state of the door link lever according to the first embodiment of this invention, and FIG. 3 is a perspective view showing the installed state of the door link lever according to the first embodiment of this invention. FIG. 3 is a perspective view showing an attached state of the door link lever according to the embodiment. 1... Casing, 4... Axis pin, 7... Operation cable, 7a... Outer cable, 7b... Inner wire, D... Air distribution door (air intake door), L... Door link lever, La... Main rod,
Lb...Arm part, Lo...One end of the main rod part, Lc...
...The other end of the main rod.

Claims (1)

[Scope of utility model registration request] A shaft pin 4 is arranged outside the casing 1 and rotatably supports a ventilation door D arranged inside the casing 1, and one end Lo of the shaft pin 4 is pivotally attached to the other end Lc. An inner wire 7b of an operating cable 7 with an outer cable 7a fixed outside the casing 1 to control opening and closing of the ventilation door D.
a main rod part La whose actuating side end is locked and moved by the operation cable 7; and a ventilation door in the casing 1 that extends from the one end Lo of the main rod part La and when pressed manually. A door link lever structure for an air conditioner for a vehicle, characterized in that D is constituted by an arm portion Lb protruding outward from the casing 1 so as to be capable of reliably closing an air passage.